APF AR15 SP4 LTWT BOLT CARRIER GROUP

  • Item : APF_UP707

  • SKU :

  • Model :

  • UPC : 644216167944

$409.95

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Alex Pro Firearms (APF) is proud to introduce BCGs featuring SP4 a new hybrid DLC (Diamond Like Carbon) coating that is the result of over a year in development. SP4 combines high hardness (2500-3500 HV) with ductility to remain tough without exhibiting brittleness vs common PVD/DLC type thin film coatings. SP4 reduces friction and improves wear resistance for metal components which provides a longer life span and requires minimal maintenance with little to no lubrication. It has been tested to -44 degrees F in the mountains of Alaska and has been tested in the both Iraq and Afghanistan with no lubrication which is a huge advantage in desert environments and extreme cold. SP4 has passed the ASTM 85 (Annex 1) Salt Fog test and provides the best hardness/lowest friction co-efficient while maintaining the ability to

ManufacturerAlex Pro Firearms
UPC644216167944
Weight0.8400

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